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Finding the Fourth Proportional to 554,633.66, 831,940.47 and 155,268.36

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Solution

The fourth proportional to 554,633.66, 831,940.47 and 155,268.36 is: 232,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,633.66 : 831,940.47 = 155,268.36 : x
  2. Step 2: Convert to fraction form
    554,633.66/831,940.47 = 155,268.36/x
  3. Step 3: Cross multiply
    554,633.66x = 831,940.47 × 155,268.36
  4. Step 4: Simplify right side
    554,633.66x = 129,174,032,394.53
  5. Step 5: Solve for x
    x = 129,174,032,394.53/554,633.66
  6. Step 6: Final answer
    x = 232,899.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.